South African Fossil Reptiles and Amphibia. 



129 



equal width. In the region of the postorbital bar the jugal is at least 

 as deep as the radius of the orbit. There is a large preparietal form- 

 ing the anterior border of the pineal foramen, but there does not 

 appear to be a postf rental in any of the specimens in which the sutures 

 are displayed. If present, it must have been small. 



Thei'e is no evidence of a septomaxilla, which, if present, does not 

 appear on the face. The lachrymal is small. 



FIG. 25. Dicynodonjoiiberti, Br. Skull No. 577. Preparietal region. 



Natural size. 



The chief measurements of a typical skull are : 



Greatest length . . 108 mm. 



Greatest width . . 76 ,, 



Interf rental width . , 20 ,, 



Intel-temporal width . 21 ,, 



Basal length . 89 ,, 



Width of palate between canines . 30 ,, 



The basioccipital region of one specimen from the type locality 

 (S.A.M., Cat. No. 577) has been partially displayed. The tripartite 

 condyle is seen in section to be made up of the basioccipital and the 



